Sand-blast.



"No. 805,029. PATENTED ov. 21, 1905. E. P. REIGHHELM.

SAND BLAST.

APPLICATION FILED FEB. 6, 1905v 2 SHEETS-SHEET 1.

WITNESSES. i INYI/ENTOR ATTORNEY No. 805,029. PATENTED NOV. 21, .1905. B. P. REIGHHELMQ SAND BLAST.

APPLICATION FILED FEB. 6. 1905.

2 SHBETS-SHEET 2.

4 5%? lame 1. 1 2222 l 21,

UNiTED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed February a, 1905. Serial No. 244,446.

To all whom it may concern:

Be it known that I, EDWARD P. REICH- HELM, a citizen of the United States, and a resident of Bayonne, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Sand-Blasts, of which the following is a speci fication. This invention relates to a sand-blast, with its appurtenances, which is specially applicable for cleaning files and the like, obviating therewith the objectionable results of acidbaths. Its organization comprises an ejector operated with a fluid, preferably steam, to eject a minuted polishing and cleaning material against the object to be operated upon, in conjunction with-a fluid-stirrer, the latter being preferably arranged for steam.

Referring to the drawings, Figure 1 represents a partial front view and vertical axial section of the invention. Figs. 2 and 3 show, respectively, a side and front view of a beveled tip connected to a suction-pipe. Figs. 4 and 5 represent, respectively, a plan and elevation of a stirrer. Fig. 6 shows a partial side view and axial section of Fig. 1 on the line w 90. Fig. 7 is a partial section of Fig. 6 on the line a," :22. Fig. 8 shows a front view of a bracket with roller-support.

An operating-chamber is represented at A with the funnel-shaped head B and discharge outlet B, the funnel-shaped receiving reservoir C, and supply-reservoir Q, all of which are supported by the collar A, carried on the legs or stanchions A A steam-supply pipe D leads to the distrib-.

uting-pipe E, 1n which latter is connected the whistle-valve F and the stop-valve G. The distributing-pipe E at its upper end connects with the pipe E, which leads into the operating-chamber A and has extending from it the offset with the pipe E, that connects with the ejector H. Suction-pipes h with beveled tips h lead to the ejector from the receiving-reservoir C. The said suctionpipes connect with the Ts 7L2 and the nipples h join the latter with ejector H. The offset having the pipe E is connected with the T e, nipple e, elbows c and nipple 6 the T e being in the run of piping E and the nipple e leading directly into the inlet of the ejector H, the opening H of which is above the nipples It A plug J connects the T 71. at the lefthand side of the ejector H with the T e, and a closed pipe or rod J extends from the T h on the right-hand side of the said ejector and passes through an opening in the shell of the chamber A to constitute a supfrom which extend arms Z, that have their outer ends bent to conform to helical lines to constitute helical nozzles, one arm leading to the right and the other to the left, so as to eject steam or any other fluid in spiral paths and strike the inner faces of the tips h. An overflow-pipe M leads from the chamber A to a tank M, and the latter has an overflowpipe 1/ I 'To the chamber A and over an opening therein is hinged the door A with the handle A to allow easy access to the interior of said chamber, and the latter is made of a height so as to allow any minuted material ejected from the ejector with the fluid passing therethrough to gravitate back to the receivingreservoir C instead of being discharged with the steam or other fluid through the discharge-outlet B. An opening A is formed in the shell of the chamber A, located so that any object to be operated upon can be held over thenozzle H of the ejector. Adjacent tothe said opening is journaled a roller-support 0 in the bracket 0. The latter is adjustably fastened to the shell of the chamber A by means of the studs 0 and a stiffeningplate 0 is generally interposed between the said shell and bracket. A slot 0 in the bracket 0 allows its adjustment in different vertical positions.

Above the opening A and on the inside of the chamber A there is adjustably clamped a roller-frame P with the rollers P forming a second support. The frame is bolted to the shell of the chamber A by means of the studs 1), that pass through the opening or slot p, nuts p clamping the frame in place. Fillingpieces P and P are generally fastened to the shell of the chamber to strengthen the same in the vicinity of the slot 1).

The funnel-shaped receiving-reservoir O is connected with the supply-reservoir Q by IIO Q is supported on the bracket Q which lat ter is carried on the ring A and fastened to the shell of the chamber A.

To use the invention, the receiving-reservoir C is partially filled with a minuted material, preferably sand, and the supply thereof is automatically maintained through the pipe Q from the supply-reservoir Q,the pipe Q being of a diameter to admit a quantity of the materiallor sand to make up for the loss thereof when the apparatus is in operation. A fluid, preferably steam, is supplied by the pipe D, which is forced through the outlet H of the ejector, at the will of the operator, and the outlets of the stirrer L. Upon being discharged from the latter it whirls through the sand in spiral paths and makes a uniform mechanical mixture of the sand, steam, and water condensed from the latter. The mixture strikes the inner faces of the tips h. An operator by pressing his foot on the treadle K opens the whistle-valve F, and the fluid or steam enters the ejector H and is discharged from the nozzle H, by virtue of which a suction is produced in the pipes h, and the mixture of steam, water, and sand in suspension is violently blown through the opening in the nozzle H. An object to be cleaned or polished, in the present case shown to be a file or number of files, is secured between the clamps R of the tongs S. The said object is moved forward and back over the path of the blast by supporting the tongs on the roller-sup port 0, and the end of the file or files bearing up against the rollers P, so as to maintain them in proper position.

Having described my invention, I claim 1. The combination of an operating-chamber, a receiving-reservoir adjacent to the same, an ejector in the chamber for drawing a minuted material from the said reservoir and mixing it with the fluid forced through the ejector, and a fluid-stirrer in the reservoir.

2. In a sand-blast the combination of an operating-chamber having an opening, a receiving-reservoir adjacent to the same, a steam-ejector in the chamber for drawing the sand from the said reservoir through the ejector, with the steam-forced therethrough, and asteam-stirrer in the reservoir.

3. The combination of an. operating-chamber having an opening, a receiving-reservoir below the same, an ejector in the chamber for drawing a minuted cleaning and polishing material from the said reservoir, and mixing it with the fluid forced through the ejector, a fluid-stirrer in the reservoir, arms with helical nozzles extending from the said stirrer.

4. The combination. of an operating-chamber having an opening, a receiving-reservoir below the same, an ejector in the chamber for drawing a minuted material from the said reservoir, and mixing it with a fluid forced through the ejector, a fluid-stirrer in the reservoir, a support on the inside, and a support on the outside of the chamber, to hold an object'to be operated upon in proper position.

5. The combination of an operating-chamber having an opening, a sand-receiving reservoir below the same, a steam-ejector in the chamber for drawing the sand from the reservoir through the ejector, with the steam discharged therefrom, a steamstirrer in the said reservior, arms on the stirrer, helical ends on the said arms, a roller-support in the chamber, and a roller-support on the outside of the chamber.

6. The combination of an operatingchamber having an opening, a receiving-reservoir below the same, a steam-ej ector in the chamber, a steam-stirrer in the said reservoir, a roller support adjustably secured in the chamber, a roller-support adjustably secured on the outside of the chamber, both supports adjacent to the opening in the chamber, a supply-reservoir for sand adjacent to the chamber, and a pipe leading from the supplyreservoir to the said receiving-reservoir.

7. The combination of an operating-chamber, a sand-receiving reservoir below, and a discharge-outlet above the same, a steamsupply pipe, a distributing-pipe connected with the latter pipe, a whistle-valve in the distributing-pipe, a treadle, a connecting-link between the treadle and whistle-valve, piping extending from the distributing-pipe and leading into the chamber, an ejector connected up with the latter piping, suction-pipes extending from the piping in the chamber to the lower portion of the receiving-reservoir, beveled tips 'on the ends of the said suctionpipes, a stop-valve in the distributing-pipe, piping extending from the other end of the distributing-pipe below the stop-valve, leadingand entering through the bottom of said reservoir, a stirrer in the reservoir and connected to the piping entering through. the bottom thereof, arms on the stirrer and helical nozzles on the said arms.

8. The combination of an operating-chamber; a sand-receiving reservoir below, and a discharge-outlet above the same; a steam supply pipe; a distributing-pipe, connected with the said pipe; two valves in the distributing-pipe; a treadle, a connection between the treadle and one of the said valves; piping leading into the chamber from the valve con nected with the treadle a steam-ejector con nected up with the piping in the chamber; suction-pipes connected with the latter piping and extending into the receiving-reservoir; piping extending from the second valve and leading through the bottom of the receiving-reservoir; a stirrer connected with the latter piping; arms on the stirrer; helical nozzles on the said arms; a roller-support adjustably clamped on the inside, and a roller.

support adj ustably clamped on the outside of the operating-chamber, both supports near the opening in said chamber; a sand-supply reservoir adj aeent to the -chamber; a pipe eX- Signed at New York, in the county of New tending from the supply-reservoir to the re- York and State of New York, this 1st day of ceiving-reservoir a door hinged on the cham- February, A. D. 1905.

her over an opening in the shell thereof; an EDWARD P. REICHHELM. 5 overflow-pipe extending from the chamber a Witnesses:

tank for the latter pipe; and an overflovwpipe RUFUS L. WEAVER, in said tank MYRON H. CooK. 

